By analyzing more than two decades of data in the western U.S., scientists have shown that flood sizes increase exponentially as a higher fraction of precipitation falls as rain, offering insight into how flood risks may change in a warming world with less snow.

Farmers, large and small, are beginning to grapple with what the Sustainable Groundwater Management Act means for them. Many expect to see cutbacks on pumping once the program is fully implemented in 2040.

Despite having proven effective at reducing wildfire risks, prescribed burns have been stymied by perceived and real risks, regulations and resource shortages. A new analysis highlights ways of overcoming those barriers, offering solutions for wildfire-ravaged landscapes.

Stanford hydrologist Newsha Ajami, an appointee to California’s regional water quality board, discusses how wildfires affect water quality, and how we can better prepare for and react to the challenges.